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AssigneeMitsubishi Gas Chemical Company, Inc.
InventorsTamotsu Ueno, Takehiko Takahashi, Kazuo Takada, Toshio Hidaka, Makoto Takagawa
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Hydrocarbon is catalytically converted by using a fluorine compound represented by the general formula Z.sup.+ MF.sub.6.sup.-, wherein Z is a hydrogen atom or a hydrogen group, and M is a niobium atom, an antimony atom or a tantalum atom as a catalyst, wherein a catalytically inactive component is settled as a heavy liquid phase or deposited as a solid in a reaction product solution from the conversion of hydrocarbon, the heavy liquid phase or the solid is removed from the reaction product solution, thereby removing substantially the catalytically inactive component therefrom, and the remaining catalytically active component is reused in the conversion of hydrocarbon. An amount of a fresh catalyst solution to be supplemented is considerably reduced by effectively reusing the catalytically active component.
A process for converting a hydrocarbon by using a fluorine compound represented by the general formula Z.sup.+ MF.sub.6.sup.-, wherein Z is a hydrogen atom or a hydrocarbon group, and M is a niobium atom, an antimony atom or a tantalum atom, as a catalyst, which comprises separating a reaction product solution resulting from the conversion of the hydrocarbon into a hydrocarbon layer as a first light liquid phase and a catalyst layer as a first heavy liquid phase, said catalyst layer containing catalytically inactive component and catalytically active component, settling catalytically inactive component of the catalyst layer as a second heavy liquid phase, separating the second heavy liquid phase from the catalyst layer to substantially remove the catalytically inactive component, and reusing the remaining catalytically active component in the conversion of hydrocarbon.
A process for converting a hydrocarbon by using a fluorine compound represented by the general formula Z.sup.+ MF.sub.6.sup.-, wherein Z is a hydrogen atom or a hydrocarbon group, and M is a niobium atom, an antimony atom or a tantalum atom, as a catalyst, which comprises separating a reaction product solution resulting from the conversion of the hydrocarbon into a hydrocarbon layer as a first light liquid phase and a catalyst layer as a first heavy liquid phase, said catalyst layer containing catalytically inactive component and catalytically active component, depositing catalytically inactive component of the catalyst layer as a solid, separating the solid from the catalyst layer to substantially remove the catalytically inactive component, and reusing the remaining catalytically active compound in the conversion of hydrocarbon.
A process for converting a hydrocarbon by using a fluorine compound represented by the general formula Z.sup.+ MF.sub.6.sup.-, wherein Z is a hydrogen atom or a hydrocarbon group, and M is a niobium atom, an antimony atom or a tantalum atom, as a catalyst, which comprises removing sludge formed during the conversion of the hydrocarbon from the reaction product solution to thereby remove inactive component of the catalyst, and thereafter separating the resulting mother liquor into a hydrocarbon layer and a catalyst layer and reusing the catalyst layer.
Dependencies are inferred from the claim text.